North Lake East Dam Reservoir Report
Nearby: North Lake West Dam Adak Log Dam
Last Updated: December 31, 2025
North Lake East Dam, also known as North Lake Dam, is a rockfill dam located in Aleutians West, Alaska.
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Summary
Built in 1970, this dam serves as a vital water supply infrastructure for the local government of ADAK NAVAL BASE. With a height of 14 meters and a length of 365 meters, North Lake East Dam has a storage capacity of 56 million gallons, making it a crucial resource for the community.
The dam is state-regulated by AKDNR and undergoes regular inspections to ensure its structural integrity. Classified as having a significant hazard potential, North Lake East Dam is considered to have a high risk level. Despite not being condition-rated, the dam continues to play a key role in water management and supply for the region. Water resource and climate enthusiasts would be interested in monitoring the risk management measures and future developments related to this essential infrastructure.
With its location in the Alaska District and its primary purpose being water supply, North Lake East Dam stands as a testament to the importance of reliable water resources in remote regions. As a rockfill dam with buttress core types, it showcases engineering ingenuity in providing essential services to the community. Climate change and its potential impact on water resources in the area could also be a factor of interest for enthusiasts following the developments of North Lake East Dam and its surrounding ecosystem.
Year Completed |
1970 |
Dam Length |
365 |
Primary Dam Type |
Rockfill |
Hydraulic Height |
14 |
Nid Storage |
56 |
Structural Height |
14 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
North Lake East Dam